Engineered with extra-thick pre-curved high impact latex foam core for the ultimate impact absorption and to protect against training injuries.Made of premium leather with open palm design and double wrist wrap hook & loop closure for added wrist support and secure fit.Features: Open palm Double wrist wrap Premium quality leather Excellent hand and knuckle protection. Knuckle Width (Max) Weight M 4.8" 5 oz L 5.2" 5.5 oz XL 5.9" 6 oz